#1C66AE

#1C66AE

Color Values

HEX

#1C66AE

RGB

28, 102, 174

HSL

209.6, 72.3%, 39.6%

HSV

209.6, 83.9%, 68.2%

CMYK

83.9%, 41.4%, 0.0%, 31.8%

OKLCH

0.5047 0.1341 252.0

Properties

Cool Dark Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#1C66AE

#AE641C

Analogous

#1CAEAD

#1C1DAE

#1C66AE

Triadic

#1C66AE

#AE1C66

#66AE1C

Split Complementary

#1C66AE

#AE1C1D

#AEAD1C

Tetradic

#1C66AE

#AD1CAE

#AE641C

#1DAE1C

Color Blindness Simulation

Original

#1C66AE

Protanopia

#3C3D9D

Deuteranopia

#383298

Tritanopia

#208F8C

Achromatopsia

#5B5B5B

CSS Usage

background-color: #1C66AE;
color: #1C66AE;
border-color: #1C66AE;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F3F7FC
100
#E2EDF8
200
#C1DCF5
300
#96C2EE
400
#5CA2E5
500
#2381DC
600
#1C67B0
700
#17528D
800
#12406E
900
#113150
950
#0B1F33

Contrast Checker

Text on white

5.9:1

AA Pass AAA Fail

Text on black

3.56:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026